drm/amd/display: clean up some irq service code for dcn201

[Why and how]

Clean up some irq service code for dcn201.
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Liu Xi <xi.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/irq/dcn201/irq_service_dcn201.c

@@ -28,20 +28,19 @@
 #include "include/logger_interface.h"
 
 #include "../dce110/irq_service_dce110.h"
+#include "irq_service_dcn201.h"
 
 #include "dcn/dcn_2_0_3_offset.h"
 #include "dcn/dcn_2_0_3_sh_mask.h"
 
 #include "cyan_skillfish_ip_offset.h"
 #include "soc15_hw_ip.h"
-
-#include "irq_service_dcn201.h"
-
 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
 
-static enum dc_irq_source to_dal_irq_source_dcn201(struct irq_service *irq_service,
-						   uint32_t src_id,
-						   uint32_t ext_id)
+enum dc_irq_source to_dal_irq_source_dcn201(
+		struct irq_service *irq_service,
+		uint32_t src_id,
+		uint32_t ext_id)
 {
 	switch (src_id) {
 	case DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP:
@@ -79,7 +78,6 @@ static enum dc_irq_source to_dal_irq_source_dcn201(struct irq_service *irq_servi
 	default:
 		return DC_IRQ_SOURCE_INVALID;
 	}
-	return DC_IRQ_SOURCE_INVALID;
 }
 
 static bool hpd_ack(
@@ -138,6 +136,11 @@ static const struct irq_source_info_funcs vupdate_no_lock_irq_info_funcs = {
 	.ack = NULL
 };
 
+static const struct irq_source_info_funcs dmub_outbox_irq_info_funcs = {
+	.set = NULL,
+	.ack = NULL
+};
+
 #undef BASE_INNER
 #define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
 

drivers/gpu/drm/amd/display/dc/irq/dcn201/irq_service_dcn201.h

 /*
- * Copyright 2018 Advanced Micro Devices, Inc.
+ * Copyright 2022 Advanced Micro Devices, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),